CN109092894A - A kind of milling method producing wide cut alclad sheet - Google Patents
A kind of milling method producing wide cut alclad sheet Download PDFInfo
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- CN109092894A CN109092894A CN201810934799.XA CN201810934799A CN109092894A CN 109092894 A CN109092894 A CN 109092894A CN 201810934799 A CN201810934799 A CN 201810934799A CN 109092894 A CN109092894 A CN 109092894A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B1/00—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations
- B21B1/38—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling sheets of limited length, e.g. folded sheets, superimposed sheets, pack rolling
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B37/00—Control devices or methods specially adapted for metal-rolling mills or the work produced thereby
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B1/00—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations
- B21B1/38—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling sheets of limited length, e.g. folded sheets, superimposed sheets, pack rolling
- B21B2001/383—Cladded or coated products
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B1/00—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations
- B21B1/38—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling sheets of limited length, e.g. folded sheets, superimposed sheets, pack rolling
- B21B2001/386—Plates
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- Mechanical Engineering (AREA)
- Pressure Welding/Diffusion-Bonding (AREA)
- Metal Rolling (AREA)
Abstract
The invention discloses a kind of milling methods for producing wide cut alclad sheet, mainly include that step (1) determines that skin material is respectively less than core material with core material specification and skin material width and length, the formation composite ingot at core material upper and lower surfaces is coated and fixed in skin material；(2) composite ingot is heated using two-period form heating cycle；(3) preheated nip roll is to operating temperature；(4) it rolls, successively carries out first time axial rolling-second of transverse rolling-axial rolling.By being controlled at rolling initial stage lotion while by matching the key process parameters such as each reduction in pass and mill speed, it is fitted close three, to ensure that rolling, spread, going on smoothly of coating；Limit alclad board width no longer by ingot casting width.Compared with existing common process, this milling method can produce broader alclad light sheet, shorten processing flow, improve production efficiency, and promote surface quality, reach the target for the defects of reducing lotion trace, color difference, secret note.
Description
Technical field
The invention belongs to aluminium to roll field, and in particular to a kind of milling method for producing wide cut alclad sheet.
Background technique
Aluminium alloy due to its intensity height, good toughness, it is heat-resist, have excellent moldability and the features such as resistant to damage, it is common to navigate
Empty Aerospace structural material is currently the important feature material of covering, rib and spar under fuselage skin, fuselage ring, wing, empennage
Material.Wherein skin material uses alclad light sheet more, and production technology is complex, and the rolling of especially alclad ingot casting is that alclad covers
The important procedure of dermatotome has important influence to sequent surface quality, clad ratio and template etc..
With the rapid development of aircraft industry, the demand to wide cut (width >=2000mm) alclad skin panel is increasing,
Wider skin panel can effectively reduce the connection process such as riveting, welding, promote stability, the reliability of aircraft materials.But it is existing
There is technology to rarely have and be related to the production of wide cut alclad skin panel, because covering board core material mostly uses 2,7 line aluminium alloys, founding
The width of ingot casting is limited, general ingot casting width maximum can only accomplish 2080mm, be not used to production width >=2000mm completely
Alclad skin panel.Such as 104525563 A of patent CN " a kind of milling method of alclad ingot casting ", mentioned plate can only be done
To 1800mm, and related method is to roll twice, increases production process, makes troubles for industrial production.Patent CN
104526281A " a kind of preparation process of aluminium alloy brazing sheet " is also the method using secondary rolling, increases production procedure,
Reduce production efficiency.
Summary of the invention
In view of this, being rolled the purpose of the present invention is to provide a kind of milling method for producing wide cut alclad sheet by special
Technique processed rolls out wide cut alclad sheet, and shortens process flow, improving production efficiency.
In order to achieve the above objectives, the invention provides the following technical scheme: a kind of milling method for producing wide cut alclad sheet, main
Want the following steps are included:
(1) skin material and core material specification are determined and skin material width and length are respectively less than core material, skin material is coated and fixed in core material
Composite ingot is formed at upper and lower surfaces；
11) it, determines the ingot casting specification respectively as skin material and core material, milling face and excision head is carried out to the ingot casting as core material
Tail is sawed milling into desired specification；
12) according to standard envelope rate require, by as the ingot rolling of skin material at heavy-gauge sheeting；
13) two blocks of skin materials are sawed into according to wide, the long heavy-gauge sheeting scale than will roll out of skin material and core material；
14) surface degreasing and deashing are carried out to the core material after saw milling, while to two pieces of skin material carry out tables that length saw is cut out
It polishes with scale removal in face；
15) two pieces of skin material correspondences are coated at the upper and lower surface of core material, skin material is fixed on core material by spot welding, and
Two blocks of skin materials are securely coated on core material using steel band and form composite ingot.
(2) composite ingot is heated using two-period form heating cycle；Two-period form heating cycle is (150~200) DEG C/2h
+ (430~480) DEG C/(3-5) h.
(3) preheated nip roll is to operating temperature；Roll is preheated to 250~350 DEG C.
(4) it rolls, successively carries out first time axial rolling-second of transverse rolling-axial rolling；
First time axial rolling includes:
41) milling train lotion, is closed, steel band is cut, composite ingot is longitudinally sent to roller gap, roll is made to be aligned composite ingot
Center line in a longitudinal direction；
42), roll is from intermediate open rolling, stopping when being rolled to ingot casting edge certain distance, and subsequent multi-pass successively reversely rolls again
Stop when system to ingot casting edge certain distance；Drafts and mill speed are controlled in the operation of rolling, wherein drafts is according to rolling
Passage first keeps constant, increases again, finally reduces, and the drafts of each passage is the light reduction no more than 5mm, rolling speed
Degree remains unchanged, and keeps roll not depart from ingot casting when rolling；
43), integral by multi- pass rolling to skin material and core material soldering；
Transverse rolling includes:
44), the integral ingot casting of soldering is rotated by 90 °, opens lotion；
45), from ingot casting laterally an edge open rolling to another edge, it is subsequent be successively reversed again multi-pass boradside rolling at
Plate；Drafts and mill speed are controlled in the operation of rolling, wherein drafts first increased according to rolling pass, kept constant again,
Finally reduce, the drafts of each passage is the heavy reduction not less than 10mm, speed when mill speed is faster than first time axial rolling
While remaining unchanged；
Second of axial rolling include:
46), plate is rotated by 90 ° again after the completion of boradside rolling, routinely hot rolling technology is coiled by plate hot rolling, obtains width
Width alclad light sheet.
Further, the first time axial rolling in step (4) includes six passes, specifically:
First passage therefrom between open rolling to ingot casting 100~400mm of edge when stop, roll drafts is 0.5mm, rolling speed
Degree is 0.5m/s；
Stop when second passage is from the first reversed open rolling of passage stop position to ingot casting 100~400mm of edge, roll pressure
Amount is 0.5mm, mill speed 0.5m/s；
Stop when third passage is from the second reversed open rolling of passage stop position to ingot casting 100~400mm of edge, roll pressure
Amount is 0.5mm, mill speed 0.5m/s；
Stop when four-pass is from the reversed open rolling of third passage stop position to ingot casting 100~400mm of edge, roll pressure
Amount is 1mm, mill speed 0.5m/s；
Stop when 5th passage is from the reversed open rolling of four-pass stop position to ingot casting 100~400mm of edge, roll pressure
Amount is 3mm, mill speed 0.5m/s；
Stop when 6th passage is from the 5th reversed open rolling of passage stop position to ingot casting 100~400mm of edge, roll pressure
Amount is 1mm, mill speed 0.5m/s；
Ingot casting is all without departing from roll during first passage to the 6th passes；
Transverse rolling includes four-pass rolling, specifically:
From ingot casting, laterally to another edge, roll drafts is 11mm, mill speed 1m/ to 7th passage for an edge open rolling
s；
The 8th reversed open rolling of passage, roll drafts are 15mm, mill speed 1m/s；
The 9th reversed open rolling of passage, roll drafts are 15mm, mill speed 1m/s；
The tenth reversed open rolling of passage, roll drafts are 18mm, mill speed 1m/s；
Second of axial rolling includes several passage coiled material rollings.
The beneficial effects of the present invention are:
In this milling method, the composite ingot coated is heated with two-period form heating cycle before rolling, also by roll
It is preheated to operating temperature, reduces the steam between skin material and core material contact surface, facilitates laminating go on smoothly.
The dimension difference of skin material and core material by optimization, both eliminated because size difference it is excessive caused by coat after clad ratio not
It is uniform and relatively low, the problem of being unsatisfactory for standard requirements；Eliminate again because size difference it is too small caused by skin material spread excessive exceed
The problem of ingot casting boundary makes rolling that can not go on.
This milling method controls lotion at rolling initial stage while by matching each reduction in pass and rolling speed
The key process parameters such as degree, are fitted close three, to ensure that rolling, spread, going on smoothly of coating；Keep alclad sheet wide
Degree is no longer limited by ingot casting width, and broader alclad light sheet can be produced by adjusting rolling pass.
Compared with existing common process, this milling method shortens processing flow, improves production efficiency, and makes surface matter
Amount is promoted, and the target for the defects of reducing lotion trace, color difference, secret note is reached.
Detailed description of the invention
In order to keep the purpose of the present invention, technical scheme and beneficial effects clearer, the present invention provides following attached drawing and carries out
Illustrate:
Fig. 1 is each rolling pass schematic diagram of first time axial rolling；
Fig. 2 is each rolling pass schematic diagram of transverse rolling；
Fig. 3 is wide cut alclad plate clad ratio curve graph；
Fig. 4 is the surface quality comparison diagram of this milling method and pair rolling method rolled parts.
Specific embodiment
Below in conjunction with attached drawing, a preferred embodiment of the present invention will be described in detail.
The milling method of the production wide cut alclad sheet of the present embodiment, mainly comprises the steps that
(1) selection and composite ingot is made.
11), select 2024 alloys as core material ingot casting, specification is 500 × 2080 × 4600mm, selects 1050 alloy conducts
Skin material ingot casting；End to end by 2024 core material ingot mill surfaces and excision, having a size of 450 × 2040 × 4000mm after saw milling.
12) it is required according to AMS4462 standard envelope rate, uses pair rolling technique that will roll as 1050 alloy cast ingots of skin material
25mm heavy-gauge sheeting is made.
13) press that skin material is 150~250mm narrower than core material width, the narrow 450~550mm of length, the heavy-gauge sheeting scale that will be rolled out
It is sawed into two blocks of skin materials.
14) surface degreasing and deashing are carried out to 2024 alloy core materials after saw milling, while to two pieces of skins that length saw is cut out
Material carries out surface polishing with scale removal.
15) two pieces of correspondences of skin material 2 are coated at the upper and lower surface of core material 3, skin material is fixed on by core material 3 by spot welding
On, and two blocks of skin materials 2 are securely coated on core material using steel band and form composite ingot.
(2) composite ingot coated is heated using two-period form heating cycle, rolling of coming out of the stove later；Two-period form heating
System is (150~200) DEG C/2h+ (430~480) DEG C/(3-5) h.
(3) operating temperature of 1 to 250~350 DEG C of preheated nip roll before rolling.
(4) it rolls, successively carries out first time axial rolling-second of transverse rolling-axial rolling.
First time axial rolling includes:
41) milling train lotion, is closed, steel band is cut, composite ingot is longitudinally sent to roller gap, roll is made to be aligned composite ingot
Center line in a longitudinal direction guarantees that the open rolling position of roll is in composite ingot in the center of length direction.
42), roll is from intermediate open rolling, stopping when being rolled to ingot casting edge certain distance, and subsequent multi-pass successively reversely rolls again
Stop when system to ingot casting edge certain distance；Drafts and mill speed are controlled in the operation of rolling, wherein drafts is according to rolling
Passage first keeps constant, increases again, finally reduces, and the drafts of each passage is the light reduction no more than 5mm, rolling speed
Degree remains unchanged, and keeps roll not depart from ingot casting when rolling.
43), integral by multi- pass rolling to skin material and core material soldering.
First time axial rolling in the present embodiment includes six passes, the specific operation of rolling altogether are as follows:
First passage therefrom between open rolling to ingot casting 200~300mm of edge when stop, roll drafts is 0.5mm, rolling speed
Degree is 0.5m/s.
Stop when second passage is from the first reversed open rolling of passage stop position to ingot casting 200~300mm of edge, roll pressure
Amount is 0.5mm, mill speed 0.5m/s.
Stop when third passage is from the second reversed open rolling of passage stop position to ingot casting 200~300mm of edge, roll pressure
Amount is 0.5mm, mill speed 0.5m/s.
Stop when four-pass is from the reversed open rolling of third passage stop position to ingot casting 200~300mm of edge, roll pressure
Amount is 1mm, mill speed 0.5m/s.
Stop when 5th passage is from the reversed open rolling of four-pass stop position to ingot casting 200~300mm of edge, roll pressure
Amount is 3mm, mill speed 0.5m/s.
Stop when 6th passage is from the 5th reversed open rolling of passage stop position to ingot casting 200~300mm of edge, roll pressure
Amount is 1mm, mill speed 0.5m/s.
Ingot casting is all without departing from roll during first passage to the 6th passes.
Transverse rolling includes:
44), the integral ingot casting of soldering is rotated by 90 °, opens lotion.
45), from ingot casting laterally an edge open rolling to another edge, it is subsequent be successively reversed again multi-pass boradside rolling at
Plate；Drafts and mill speed are controlled in the operation of rolling, wherein drafts first increased according to rolling pass, kept constant again,
Finally reduce, the drafts of each passage is the heavy reduction not less than 10mm, speed when mill speed is faster than first time axial rolling
While remaining unchanged；Each rolling pass ingot casting in transverse rolling is normally shut out, without keeping ingot casting not depart from roll again.
Transverse rolling in the present embodiment includes four-pass rolling, the specific operation of rolling altogether are as follows:
From ingot casting, laterally to another edge, roll drafts is 11mm, mill speed 1m/ to 7th passage for an edge open rolling
s。
The 8th reversed open rolling of passage, roll drafts are 15mm, mill speed 1m/s.
The 9th reversed open rolling of passage, roll drafts are 15mm, mill speed 1m/s.
The tenth reversed open rolling of passage, roll drafts are 18mm, mill speed 1m/s.
By the heavy reduction rolling in transverse rolling, the ingot casting of former 2080mm wide can be spreaded to 2350mm wide, and can guarantee
Warpage is not serious when ingot casting spreads, to not influence subsequent rolling quality.
Second of axial rolling include:
46), plate is rotated by 90 ° again after the completion of boradside rolling, routinely hot rolling technology carries out several passes for plate
Material hot rolling is coiled, finally obtains wide cut alclad light sheet.
In this milling method, the composite ingot coated is heated with two-period form heating cycle before rolling, also by roll
It is preheated to operating temperature, reduces the steam between skin material and core material contact surface, facilitates laminating go on smoothly.
In addition, the dimension difference of skin material and core material by optimization, both eliminated because size difference it is excessive caused by coat after wrap
The problem of covering that rate is uneven and relatively low, being unsatisfactory for standard requirements；Eliminate again because size difference it is too small caused by skin material spreaded
The problem of making rolling that can not go on beyond ingot casting boundary greatly.
The too small skin material that will lead to of initial stage rolling pass drafts is not coated on core material completely, cause to fall off when transverse rolling to
Make rolling can not carry out, and drafts it is excessive can make plate surface quality be deteriorated.This milling method is at rolling initial stage to lotion
It is controlled while being passed through and match the key process parameters such as each reduction in pass and mill speed, be fitted close three, from
And it ensure that rolling, spread, going on smoothly of coating.Limit alclad board width no longer by ingot casting width, it can be by adjusting
Rolling pass produces broader alclad light sheet.Compared with existing common process, this milling method shortens processing flow, mentions
Production efficiency has been risen, and has promoted surface quality, has reached the target for the defects of reducing lotion trace, color difference, secret note.
Fig. 3 is the upper and lower surface clad ratio feelings in the wide cut alclad light sheet same full width orientation produced using this milling method
Condition, the clad ratio in edge 100mm distance in two sides on strip width direction it can be seen from diagram is smaller, this is because 1050
Spread uneven caused in skin edge portion.Strip width centre clad ratio is uniform, between 5%-5.8%, complies fully with work
Skill requirement.
In Fig. 4, left side A is the wide cut alclad light sheet produced using this milling method, and right side B is raw using common process
The alclad sheet of production is observed that after amplification by picture it can be seen that the alclad sheet lustrous surface of common process production is dim
Entire plate face is dispersed with the small black line along rolling direction, this is because traditional handicraft rolling with emulsion cooperation is bad leads to surface
Caused by aluminium powder oxidation and emulsion residue.The wide cut alclad sheet entire surface of this milling method production is shinny, and observation can after amplification
It was found that surface black line becomes tiny and disperses, so that overall appearance is more excellent.
Finally, it is stated that preferred embodiment above is only used to illustrate the technical scheme of the present invention and not to limit it, although logical
It crosses above preferred embodiment the present invention is described in detail, however, those skilled in the art should understand that, can be
Various changes are made to it in form and in details, without departing from claims of the present invention limited range.
Claims (5)
1. a kind of milling method for producing wide cut alclad sheet, it is characterised in that mainly comprise the steps that
(1) skin material and core material specification are determined and skin material width and length are respectively less than core material, skin material is coated and fixed upper and lower in core material
Composite ingot is formed at surface；
(2) composite ingot is heated using two-period form heating cycle；
(3) preheated nip roll is to operating temperature；
(4) it rolls, successively carries out first time axial rolling-second of transverse rolling-axial rolling；
First time axial rolling includes:
41) milling train lotion, is closed, steel band is cut, composite ingot is longitudinally sent to roller gap, makes roll alignment composite ingot vertical
Center line on direction；
42), roll is from intermediate open rolling, stopping when being rolled to ingot casting edge certain distance, and subsequent multi-pass is successively reversely rolling to again
Stop when ingot casting edge certain distance；Drafts and mill speed are controlled in the operation of rolling, wherein drafts is according to rolling pass
It first keeps constant, increase again, finally reduce, and the drafts of each passage is the light reduction no more than 5mm, mill speed is protected
It holds constant, keeps roll not depart from ingot casting when rolling；
43), integral by multi- pass rolling to skin material and core material soldering；
Transverse rolling includes:
44), the integral ingot casting of soldering is rotated by 90 °, opens lotion；
45), from ingot casting, laterally an edge open rolling is subsequent to be successively reversed multi-pass boradside rolling again into plate to another edge
Material；Drafts and mill speed are controlled in the operation of rolling, wherein drafts first increases according to rolling pass, keeps constant again, most
After reduce, the drafts of each passage is the heavy reduction not less than 10mm, when mill speed is faster than first time axial rolling speed and
And it remains unchanged；
Second of axial rolling include:
46), plate is rotated by 90 ° again after the completion of boradside rolling, routinely hot rolling technology is coiled by plate hot rolling, obtains wide cut packet
Aluminium sheet material.
2. the milling method of production wide cut alclad sheet according to claim 1, it is characterised in that: step (1) is divided into following
Sub-step:
11) it, determines the ingot casting specification respectively as skin material and core material, milling face and excision is carried out end to end to the ingot casting as core material,
Milling is sawed into desired specification；
12) according to standard envelope rate require, by as the ingot rolling of skin material at heavy-gauge sheeting；
13) two blocks of skin materials are sawed into according to wide, the long heavy-gauge sheeting scale than will roll out of skin material and core material；
14) surface degreasing and deashing are carried out to the core material after saw milling, while surface is carried out to two blocks of skin materials that length saw is cut out and is beaten
Mill is with scale removal；
15) two pieces of skin material correspondences are coated at the upper and lower surface of core material, skin material is fixed on core material by spot welding, and uses
Two blocks of skin materials are securely coated on core material and form composite ingot by steel band.
3. the milling method of production wide cut alclad sheet according to claim 1, it is characterised in that: two-period form in step (2)
Heating cycle is (150~200) DEG C/2h+ (430~480) DEG C/(3-5) h.
4. the milling method of production wide cut alclad sheet according to claim 1, it is characterised in that: roll is pre- in step (3)
Heat is to 250~350 DEG C.
5. the milling method of production wide cut alclad sheet according to claim 1, it is characterised in that: first in step (4)
Secondary axial rolling includes six passes, specifically:
First passage therefrom between open rolling to ingot casting 100~400mm of edge when stop, roll drafts is 0.5mm, and mill speed is
0.5m/s；
Stop when second passage is from the first reversed open rolling of passage stop position to ingot casting 100~400mm of edge, roll drafts is
0.5mm, mill speed 0.5m/s；
Stop when third passage is from the second reversed open rolling of passage stop position to ingot casting 100~400mm of edge, roll drafts is
0.5mm, mill speed 0.5m/s；
Stop when four-pass is from the reversed open rolling of third passage stop position to ingot casting 100~400mm of edge, roll drafts is
1mm, mill speed 0.5m/s；
Stop when 5th passage is from the reversed open rolling of four-pass stop position to ingot casting 100~400mm of edge, roll drafts is
3mm, mill speed 0.5m/s；
Stop when 6th passage is from the 5th reversed open rolling of passage stop position to ingot casting 100~400mm of edge, roll drafts is
1mm, mill speed 0.5m/s；
Ingot casting is all without departing from roll during first passage to the 6th passes；
Transverse rolling includes four-pass rolling, specifically:
From ingot casting, laterally to another edge, roll drafts is 11mm, mill speed 1m/s to 7th passage for an edge open rolling；
The 8th reversed open rolling of passage, roll drafts are 15mm, mill speed 1m/s；
The 9th reversed open rolling of passage, roll drafts are 15mm, mill speed 1m/s；
The tenth reversed open rolling of passage, roll drafts are 18mm, mill speed 1m/s；
Second of axial rolling includes several passage coiled material rollings.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810934799.XA CN109092894B (en) | 2018-08-16 | 2018-08-16 | rolling method for producing wide-width aluminum-clad plate |
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| CN201810934799.XA CN109092894B (en) | 2018-08-16 | 2018-08-16 | rolling method for producing wide-width aluminum-clad plate |
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| CN109092894A true CN109092894A (en) | 2018-12-28 |
| CN109092894B CN109092894B (en) | 2020-01-31 |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111702009A (en) * | 2020-06-28 | 2020-09-25 | 山东南山铝业股份有限公司 | Preparation method of T4 or T42-state 2024 aluminum alloy coated aluminum sheet |
| CN113751503A (en) * | 2021-08-19 | 2021-12-07 | 山东南山铝业股份有限公司 | Welding method of 7-series aluminum alloy clad thin plate for aviation |
| CN113751524A (en) * | 2021-08-19 | 2021-12-07 | 山东南山铝业股份有限公司 | Production and preparation process of aviation O-state coated 7-series aluminum alloy skin sheet |
| CN113857871A (en) * | 2021-09-24 | 2021-12-31 | 广西柳州银海铝业股份有限公司 | Production method for eliminating ingot casting cracks of 4XXX aluminum alloy wide hot rolled plate |
| CN113996655A (en) * | 2021-08-19 | 2022-02-01 | 山东南山铝业股份有限公司 | Preparation method of 7075 aluminum alloy clad skin sheet for T6-state aviation |
| CN113857871B (en) * | 2021-09-24 | 2024-05-28 | 广西柳州银海铝业股份有限公司 | Production method for eliminating ingot cracks of 4XXX aluminum alloy wide hot rolled plate |
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| JPH06142709A (en) * | 1992-10-27 | 1994-05-24 | Nippon Steel Corp | Control rolling method for steel plate excellent in homogeneity in longitudinal direction |
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| CN108188178A (en) * | 2018-02-05 | 2018-06-22 | 南京钢铁股份有限公司 | A kind of wide thin plate production technology of ply rolling |
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Denomination of invention: A rolling method for producing wide aluminum clad plate Effective date of registration: 20210730 Granted publication date: 20200131 Pledgee: Bank of Harbin Co.,Ltd. Shenyang Branch Pledgor: TIANJIN ZHONGWANG ALUMINIUM INDUSTRY Co.,Ltd. Registration number: Y2021990000659 |